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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2006 Vol.25 No.1

Time Budget of White-eared Night Heron in Captivity
Author of the article:YU Li-jiang, ZHOU Fang*, AN Shu-qiang, YUAN Chao-yuan, LIANG Wu-hen
Author's Workplace:(Animal Science Institute of Guangxi University, Nanning 530005)
Key Words:white-eared night heron (Gorsachius magnificus); in captivity; time budget; gird
Abstract:This paper presents some recent results on the time budget of white-eared night heron (Gorsachius magnificus) in captivity, an endangered species in the world. The observation by all-occurrences’ recording method from October 2003 to April 2004 was conducted. The results are as follows: The time that white-eared night heron started to act at dark was changeable in different months. During the observation, the earliest starting time was 17:07 pm on April 15th and the latest time was 18:49 pm on February 3 th. The major behaviors of the heron were standing, resting, moving, feeding, body caring and others (including excreting, drinking and calling). Daily time budget was: resting 82.48%, standing 8.64%, moving 5.36%, feeding 1.97%, body caring 1.30%, others 0.25% (Fig.3). Most of the time was occupied by resting and standing in a day. There were no significant differences in time budget among seasons. Standing, moving and body caring showed three peaks in a day, i.e. from 6:30 to 9:00 am, 18:00 to 21:00 pm and 23:00 pm to 1:00 am. However, the exact time these activities occurred and lasted was different. Standing showed two peaks at night, i.e. from 19:00 pm to 1:00 am and 5:00 am to 7:00 am. Moving had three peaks which were from 17:00 to 19:00 pm, 23:00 to 1:00 am and 5:00 to 7:00 am. Feeding mainly occurred from 19:00 to 21:00 pm and then decreased till dusk. Body caring occurred from 19:00 to 21:00 pm and 23:00 to 1:00 am. Resting was conversed to other activities (Fig.1). It might suggest that daily activities of white-eared night heron always occurred at dark, dusk and midnight. Analysis of variance showed that resting, standing, moving, feeding, body caring in different time of a day were different significantly (F=2.50111.331, P<0.01, df=107).
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